How Graphene Oxide Quenches Fluorescence of Rhodamine 6G  

氧化石墨烯如何猝火罗丹明6G的荧光

作　　者：樊凯利[1] 郭镇坤[1] 耿志刚[2] 葛晶[1] 江申龙[2] 胡嘉华[1] 张群[1,2] 

机构地区：[1]中国科学技术大学化学物理系,合肥230026 [2]中国科学技术大学合肥微尺度物质科学因家实验室,合肥230026

出　　处：《Chinese Journal of Chemical Physics》2013年第3期252-258,I0003,共8页化学物理学报（英文）

基　　金：This work was supported by the National Basic Research Program of China （No.2010CB923300）, the National Natural Science Foundation of China （No.91127042 and No.21173205）, the Chinese Academy of Sciences （No.XDB01020000）, the FR- FCUC （No.WK2340000012）, the USTC-NSRL Joint Funds （No.KY2340000021）, and the National Under- graduate Innovative Training Program of Ministry of Education （No.201210358064）.

摘　　要：We investigate the fluorescence quenching of Rhodamine 6G （R6G）, a well known laser dye with a high fluorescence quantum yield, by as-synthesized graphene oxide （GO） in aqueous solution, which is found to be rather efficient. By means of steady-state and time-resolved fluorescence spectroscopy combined with detailed analysis about the linear absorption vari- ation for this R6G-GO system, the pertinent quenching mechanism has been elucidated to be a combination of dynamic and static quenching. Possible ground-state complexes be- tween R6G and GO during the static quenching have also been suggested. Furthermore, the direction of photoindueed electron transfer between R6G and GO has been discussed.

关 键 词：Graphene oxide Rhodamine 6G Fluorescence quenching INTERACTION Mech-anism 

分 类 号：O6[理学—化学]